Where is Iroquois Lake?

Iroquois Lake is a lake in Iroquois County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.

How deep is Iroquois Lake?

Iroquois Lake has a maximum depth of 22 feet and an average depth of 8 feet. The lake covers 62 acres.

Iroquois Lake

Iroquois County, Illinois62 acresView map Directions

No nutrient or algae sampling on record from Illinois EPA for this lake.

Max depth

22 ft

Bathymetric survey

Area

62 acres

Surface area

Shoreline

3.6 mi

Measured length

22 ft max depth

See the measurements Directions Where to stay

Iroquois Lake in Iroquois County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 22 ft. Surface area: 62 acres.

Loading map…

Iroquois Lake is a 62-acre lake in Iroquois County, Illinois with a maximum depth of 22 feet (8-foot average).

Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Iroquois Lake is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Compare swimming lakes near Chicago →

Get alerts for Iroquois Lake →

Water quality measurements for Iroquois Lake

These are the measurements Illinois EPA publishes for Iroquois Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Iroquois Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

22 ft

Average depth

8 ft

Surface area

62 acres

Shoreline

3.6 mi

Stays via Stay22

Stays near Iroquois Lake

Compare lakeside cabins, hotels, and vacation rentals near Iroquois Lake in Iroquois County, Illinois — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Iroquois Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Illinois’s top lakes →

Follow Iroquois Lake’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Iroquois Lake

→ Iroquois Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Iroquois County

Bayles Lake0.8 miView →Kellart Lake12 miView →Turtle Pond14.4 miView →Lake of the Woods27.5 miView →Homer Lake32.5 miView →Spring Lake29.9 miView →

Frequently asked questions about Iroquois Lake

Where is Iroquois Lake?: Iroquois Lake is a lake in Iroquois County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Iroquois Lake?: Iroquois Lake in Iroquois County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 22 ft. Surface area: 62 acres.
Is Iroquois Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Iroquois Lake?: Iroquois Lake has a maximum depth of 22 feet and an average depth of 8 feet. The lake covers 62 acres.